The typical asking rate per listing is in the $20's per square foot per year. The Lorton region is seeing a decline in rates. In the last 3 months, the median rate fell $6 per sqft per year. That's a 20% decline in rent.
Compared to the rest of the Washington D.C. market, the Lorton submarket has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 5 listings have come on the market, which means leases most likley are leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 2,750 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this market are around 2 stories. Most buildings in this market were built in 1985 and are Class A.